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The A7000 and A7000+ were Acorn Computers' entry level computers based on the Risc PC architecture. Launched in 1995,〔(Chris's Acorns - Acorn A7000 )〕 they replaced some of the models of the Acorn Archimedes range.〔(Technical history of Acorn - RPC700 and A7000 )〕 After the breakup of Acorn Computers in 1998, Castle Technology bought the rights to continue production of the A7000+.〔(Chris's Acorns - Castle A7000+ )〕 The A7000 used the ARM7500 system on chip which combined the separate ARM CPU, MMU, VIDC20 video chip and IOMD IO controller of the Risc PC into a single chip.〔 == Specifications and technical details〔(Acorn Risc Technologies - A7000 Factsheet )〕〔(Acorn Clan Newsletter - A7000+ )〕 == *CPU: A7000, ARM7500 clocked at 32 MHz. A7000+, ARM7500FE, with hardware floating point unit, clocked at 48 MHz or 56 MHz (Castle A7000+). *Memory type: 4 MiB FPM (8 MiB EDO A7000+) motherboard mounted and, 1 SIMM slot, supporting a maximum memory size of 132 MiB (136 MiB A7000+). *Video subsystem: VIDC20 controller integrated into ARM7500 core, display memory is shared with main memory. *Expansion: One Eurocard-sized Podule support in common with Archimedes-series machines. One internal network card socket. *Case: One 3.5 inch bay, with floppy drive, one 5.25 inch bay for a CD-ROM. Note, only one of a CD-ROM/DVD-ROM or a Eurocard Podule could be fitted. *Ports: RS-232 Serial, Parallel, PS/2 keyboard, PS/2 mouse, headphone audio out, DE15 VGA, network (optional). *Dimensions, HxWxD: 102 x 357 x 283 mm *Operating System: RISC OS 3.60 (A7000), RISC OS 3.71 (A7000+). RISC OS 4 is available as a replacement for the Acorn-implemented versions which came fitted as standard. Alternatively NetBSD〔(NetBSD acorn/32 project page )〕 or ARM Linux (historically)〔(ARM Linux - Overview of Acorn Machines )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Acorn A7000」の詳細全文を読む スポンサード リンク
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